Usage: Overview
| Users | Totals | Residence | Organization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identified | US | Asia | Europe | Other | Identified | Edu. | Ind. | Gov. | Other | |||
| Total Users 1 | 87,891 | 87,448 | 29% | 37% | 23% | 11% | 18,201 | 92% | 4% | 2% | 2% | |
| - Simulation Users 5 | 5,456 | 2,734 | 51% | 23% | 16% | 10% | 2,734 | 92% | 4% | 1% | 3% | |
| - Interactive Users 6 | 24,575 | 23,802 | 35% | 31% | 21% | 14% | 4,521 | 96% | 3% | 1% | 0% | |
| - Download Users 7 | 75,871 | 75,423 | 27% | 38% | 24% | 11% | 10,345 | 94% | 4% | 2% | 0% | |
| Total Users (old defn) 8 | 30,036 | - | - | - | - | - | - | - | - | - | - | |
| Simulation Users 5 | 5,456 users | |
|---|---|---|
| Simulation Runs | 127,006 jobs | |
| Total CPU Time | 1,479 days | |
| Total Wall Time | 11,366 days | |
| Total Interaction Time | 2,761 days | |
| Users with > 10 mins of CPU Time | 738 users | |
| Avg. Number of Simulation Runs/User | 23 jobs | |
| Avg. Time between First and Last Simulation | 206,482 days | |
| Repeat Users with > 10 Simulation Jobs | 1,986 users | |
| Repeat Users with > 3 Months 9 | 1,217 users |
| Domains Served | 8,550 |
|---|---|
| Cummulative Interactive User Sessions 10 | 74,091 |
| Cummulative Session Time | 4,055 days |
| Visitors 11 | 176,068 |
| Visits 12 | 480,315 |
| New Accounts | 4,870 |
| Max User Logins | 763 users on 2012-01-30 |
| Web Server Hits | 28,561,733 |
| Online Meetings | 0 meeting sessions 0 participants |
|---|---|
| Shared Tool Sessions 13 | 59 |
| New tools under development | 15 |
| Users | Totals | Residence | Organization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identified | US | Asia | Europe | Other | Identified | Edu. | Ind. | Gov. | Other | |||
| Total Users 1 | 87,891 | 87,448 | 29% | 37% | 23% | 11% | 18,201 | 92% | 4% | 2% | 2% | |
| - Registered Users 2 | 8,043 | 8,041 | 49% | 26% | 16% | 9% | 8,040 | 89% | 6% | 1% | 4% | |
| - Unregistered Interactive Users 3 | 14,137 | 13,895 | 27% | 35% | 23% | 14% | 1,695 | 95% | 3% | 2% | 0% | |
| - Unregistered Download Users 4 | 65,711 | 65,512 | 26% | 39% | 24% | 10% | 8,466 | 95% | 3% | 2% | 0% | |
- Sum of Registered Users2, Unregistered Interactive Users3 and Unregistered Download Users4
- Number of Users that logged in. User registration assigns a unique login to each individual user.
- Number of Unregistered Users, identified by unique hosts/IPs, that had an active Session 10 without logging in. Does not include known web bots/crawlers.
- Number of Unregistered users, identified by unique hosts/IPs, that had an active session of less than 15 minutes without logging in and downloaded a non-interactive resource such as PDF or podcast. Does not include web bots/crawlers.
- Number of Registered Users2 that ran one or more simulation runs.
- All Unregistered Users, identified by unique hosts/IPs, that had an active Session 10. Does not include known web bots/crawlers.
- All Unregistered users, identified by unique hosts/IPs that downloaded a non-interactive resource such as PDF or podcast. Does not include known web bots/crawlers.
- Sum of Simulation Users 5 + Unregistered Interactive Users 3 including web bots/crawlers.
- Number of Simulation users that returned after a gap of 3 months.
- Begins when an IP is active on the site for at least 15 minutes. Ends when inactive for more than 30 minutes, including time spent viewing videos.
- Identified by a unique IP address / hostname.
- Based on MIT OCW metric of Visits: A visit is activity by a unique visitor delimitated by a 30 minute absence from the site on either side of the activity.
These visits correspond to unique visitors 11. Does not include known web bots/crawlers - Number of Simulation sessions that were shared between 2 or more users.









